AO Surgery Reference vs BMI BSA Breast Reduction Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AO Surgery Reference
Access a comprehensive online repository of surgical knowledge for fracture management. It provides detailed guidance on diagnosis, treatment, and aftercare for numerous fracture types, supported by extensive illustrations and expert review.
- 353 fracture types covered
- 172 surgical approaches
- 1222 surgical procedures
- Over 30,000 illustrations
- Feline, canine, and equine fracture care
- Powerful search function
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QUICK ONLINE REFERENCE IN CLINICAL LIFE Gain easy access to the award-winning AO Surgery Reference. AO Surgery Reference is an online repository for surgical knowledge. It describes the complete surgical management process from diagnosis to aftercare for all fractures of a given anatomical region, and also assembles relevant material that the AO has published before. It gives access to: • aid in surgical decision making for 353 fracture types • 172 approaches • 1222 surgical procedures • all richly illustrated with more than 30'000 Illustrations and much more. To ensure the quality of the content, it is authored, edited, and peer reviewed by experienced AO Faculty from all over the world, some of which are also well-known textbook authors/editors. This is a relaunch of the AO Surgery Reference app utilizing the same responsive user interface that was released February 2020. The highlights are: • Consistent navigational logic and user experience on all screen sizes • Inclusion of feline, canine, and equine fracture care • Combination of Preparation – Approach – Reduction and Fixation – Aftercare into one step called treatment. • Introduction of a powerful search function, allowing simplifications of the user interface as it replaces previous shortcuts.
BMI BSA Breast Reduction Calc
Calculate Body Surface Area, Body Mass Index, Ideal Body Weight, and Schnur Weight for breast reduction surgery. This tool assists medical professionals and patients in making informed decisions about surgical procedures and medical necessity.
- Body Surface Area calculation
- Body Mass Index calculation
- Ideal Body Weight calculation
- Schnur Weight calculation
- Physician-developed tool
- Useful for breast reduction surgery
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This app was written and developed by a surgeon to provide a quick and easy tool for calculating Body Surface Area, Body Mass Index, Ideal Body Weight and Breast Schnur Weight. Schnur Weight is used as a reference by plastic surgeons performing breast reduction surgery and is often utilized by insurance companies in the U.S. to determine if the amount of breast tissue removed from each breast is "medically necessary." Consult the medical insurance company to see if they use Schnur tables, as not all of them do. In many cases, by knowing this value, patients and surgeons can discuss breast reduction surgery with more information and less guess work. This app is also useful for anyone who needs a fast and convenient BMI/BSA calculator. Bariatric specialists, primary care physicians, plastic surgeons are just a few examples. We hope you find this app useful! Feel free to send feedback (through the app) if you have any ideas for improvement.
Screenshots
Verdict
The clearest difference is rating: BMI BSA Breast Reduction Calc at 5.0 against AO Surgery Reference's 4.4. BMI BSA Breast Reduction Calc also leads on update cadence (every 6 weeks vs every 6 months) and review sentiment (100% vs 86%). AO Surgery Reference's advantage is ratings volume (14 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BMI BSA Breast Reduction Calc holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 14 and 4 respectively. Written reviews point the same way: 86% of AO Surgery Reference's written reviews are positive against 100% of BMI BSA Breast Reduction Calc's.
AO Surgery Reference ships an update every 6 months, BMI BSA Breast Reduction Calc every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | AO Surgery Reference | BMI BSA Breast Reduction Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (14 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 85.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 4 |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 19 MB |
| Age rating | 17+ | 12+ |
| Developer | AO Foundation | Code Surgeon LLC |
Customer experience
AO Surgery Reference
BMI BSA Breast Reduction Calc
In-app purchases
AO Surgery Reference
No in-app purchases
BMI BSA Breast Reduction Calc
No in-app purchases
Questions
Is AO Surgery Reference free?
Is BMI BSA Breast Reduction Calc free?
Which has better reviews, AO Surgery Reference or BMI BSA Breast Reduction Calc?
Do AO Surgery Reference or BMI BSA Breast Reduction Calc have ads?
Which is updated more often, AO Surgery Reference or BMI BSA Breast Reduction Calc?
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